Question

If the price of petrol be raised by 20%, then what is the percentage by which a car owner must reduce
its consumption so as not to increase his expenditure on petrol?​

Answer 1

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Formula Applied

→ Required % reduce = (Reduced value in Rs. * 100 ) / (initial Price)

Acc. To Ques.

= {(5/3) * 100} / 10

= (5 * 100) / (3 * 10)

= (50/3)

≈ 16. 67% .